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Prosonic FDU91

Ultrasonic level and flow sensor for connection to FMU9x (measuring range up to 10m)

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Endress+Hauser
SKU: FDU91

Highlights

  • Process connection: Thread
  • Temperature: -40 to +80°C (-40 to +176°F)
  • Pressure: +0.7 to +4bar (+10 to +58psi)
  • Maximum measuring range: Liquids 10m (33ft), solids 5m (16ft)
  • Blocking distance: 0.3m (1ft)
  • International explosion protection certificates

Fields of application

  • Sensor for continuous, non-contact level measurement of fluids and of bulk materials in silos, on belts, stockpiles and in crushers. Also for flow measurement in open channels and at weirs. Typically used in measurements in low structural heights.

Details

The FDU91 ultrasonic level and flow sensor for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. But also for flow measurement in open channels and measuring weirs. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Suited for explosion hazardous areas. Maximum measuring range in liquids 10m (33ft), solids 5m (16ft).


General Information
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Measuring principleTime-of-Flight
Sensor frequency 43 kHz
Medium typeLiquids, pastes, sludges and powdery to lumpy bulk solids
Measurement level rangeMaximum measuring range: Liquids 10m (33ft), solids 5m (16ft)
Blocking distance0.3 m (1 ft)
Beam angle
Process temperature range-40 to 80 °C (-40 to 176 °F)
Process pressure range0.7 to 4 bar
10.15 to 58 psi
Sensor accuracy±2mm + 0.17% of measured distance
Input/Output
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Output4...20 mA
Communication protocolHART
Profibus DP
Mechanical Data
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Installation typeVessel, Tank, Silos, Bunker, Heap, flume or open channel
Installation positionOn top
Process connectionG / NPT 1" (thread)
Wetted materialPVDF
Housing materialPVDF
Degree of protection IP68/NEMA6P
Electrical Data
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Power supply4-wire (supplied by the transmitter FMU90)
Certification/Approvals
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Hazardous approvalsATEX, FM, CSA, IEC Ex, INMETRO, NEPSI
Other Approvals/ CertificationCE
Additional Information
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Ambient temperature range-40 to 80 °C (-40 to 176 °F)
Storage temperature-40 to 80 °C (-40 to 176 °F)
Shock resistanceYes
Vibration resistanceYes
Electromagnetic compatibility (EMC)EN 61326 (NE21)
Our expert

Luis Arcos will help you to find the right product: +49 (0)30 509 308 800

Contact Expert
  • 30-day return policy
  • Official reseller
  • Expert engineering support
  • Free delivery in the EU
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from €463.03 plus VAT
Shipping in 12 working days
+ 1 day delivery to Germany
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  • 30-day return policy
  • Official reseller
  • Expert engineering support
  • Free delivery in the EU
Product Details